RT Journal Article SR Electronic T1 Sleep deprivation and obesity in adults: a brief narrative review JF BMJ Open Sport & Exercise Medicine JO BMJ OPEN SP EX MED FD BMJ Publishing Group Ltd SP e000392 DO 10.1136/bmjsem-2018-000392 VO 4 IS 1 A1 Christopher B Cooper A1 Eric V Neufeld A1 Brett A Dolezal A1 Jennifer L Martin YR 2018 UL http://bmjopensem.bmj.com/content/4/1/e000392.abstract AB Background/aims Obesity and sleep deprivation are two epidemics that pervade developed nations. Their rates have been steadily rising worldwide, especially in the USA. This short communication will explore the link between the two conditions and outline the proposed mechanisms behind their relationship.Methods Studies on the topic of sleep and obesity were reviewed, and findings were used to develop a theoretical model for the biological link between short sleep duration and obesity.Results Individuals who regularly slept less than 7  hours per night were more likely to have higher average body mass indexes and develop obesity than those who slept more. Studies showed that experimental sleep restriction was associated with increased levels of ghrelin, salt retention and inflammatory markers as well as decreased levels of leptin and insulin sensitivity.Conclusions There may be a link between obesity and sleep deprivation. We recommend further investigations are to elucidate the potential mechanisms.